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2003
In all the operations of metal forming, friction plays an important part on the result. The tribological problems encountered in the sheet deep drawing are particulary complex. The thesis objectives are to study degradations of the deep drawing die radius. These degradations have a direct impact on the sheet results.
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1994
P. Exigua var. Linicola, agent du mort-lin, peut entrainer de tres grandes pertes de rendement dans les linieres lorsque la pluviometrie est elevee. La caracterisation d'une population de 50 souches de p. Exigua var. Linicola montre une certaine variabilite entre les souches ; celle-ci s'exprime pour les caracteres suivants: morphologie, croissance ...
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